Grains are any food made from wheat, rice, oats, cornmeal, barley or other cereal grains. Whole grains contain the entire grain kernel, including the bran, germ and endosperm, while refined grains have been milled to remove these nutrient-rich parts. Each grain kernel consists of an inedible husk, bran layer, nutrient-rich germ and starchy endosperm. Common grains include rice, which is milled to remove the bran; corn, which grows on ears and is ground into cornmeal; and wheat, which is milled into flour by removing the bran and germ. Grains should be stored in a dark, dry place in sealed containers to prevent moisture